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Create a base GLSL front-end from the 3Dlabs glslang front-end from 20-Sep-2005.

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git-svn-id: https://cvs.khronos.org/svn/repos/ogl/trunk/ecosystem/public/sdk/tools/glslang@19944 e7fa87d3-cd2b-0410-9028-fcbf551c1848
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John Kessenich 2012-12-12 21:15:54 +00:00
commit a0af473a8b
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137
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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _BASICTYPES_INCLUDED_
#define _BASICTYPES_INCLUDED_
//
// Basic type. Arrays, vectors, etc., are orthogonal to this.
//
enum TBasicType {
EbtVoid,
EbtFloat,
EbtInt,
EbtBool,
EbtGuardSamplerBegin, // non type: see implementation of IsSampler()
EbtSampler1D,
EbtSampler2D,
EbtSampler3D,
EbtSamplerCube,
EbtSampler1DShadow,
EbtSampler2DShadow,
EbtSamplerRect, // ARB_texture_rectangle
EbtSamplerRectShadow, // ARB_texture_rectangle
EbtGuardSamplerEnd, // non type: see implementation of IsSampler()
EbtStruct,
EbtAddress, // should be deprecated??
};
__inline bool IsSampler(TBasicType type)
{
return type > EbtGuardSamplerBegin && type < EbtGuardSamplerEnd;
}
//
// Qualifiers and built-ins. These are mainly used to see what can be read
// or written, and by the machine dependent translator to know which registers
// to allocate variables in. Since built-ins tend to go to different registers
// than varying or uniform, it makes sense they are peers, not sub-classes.
//
enum TQualifier {
EvqTemporary, // For temporaries (within a function), read/write
EvqGlobal, // For globals read/write
EvqConst, // User defined constants and non-output parameters in functions
EvqAttribute, // Readonly
EvqVaryingIn, // readonly, fragment shaders only
EvqVaryingOut, // vertex shaders only read/write
EvqUniform, // Readonly, vertex and fragment
// pack/unpack input and output
EvqInput,
EvqOutput,
// parameters
EvqIn,
EvqOut,
EvqInOut,
EvqConstReadOnly,
// built-ins written by vertex shader
EvqPosition,
EvqPointSize,
EvqClipVertex,
// built-ins read by fragment shader
EvqFace,
EvqFragCoord,
// built-ins written by fragment shader
EvqFragColor,
EvqFragDepth,
// end of list
EvqLast,
};
//
// This is just for debug print out, carried along with the definitions above.
//
__inline const char* getQualifierString(TQualifier q)
{
switch (q) {
case EvqTemporary: return "Temporary"; break;
case EvqGlobal: return "Global"; break;
case EvqConst: return "const"; break;
case EvqConstReadOnly: return "const"; break;
case EvqAttribute: return "attribute"; break;
case EvqVaryingIn: return "varying"; break;
case EvqVaryingOut: return "varying"; break;
case EvqUniform: return "uniform"; break;
case EvqIn: return "in"; break;
case EvqOut: return "out"; break;
case EvqInOut: return "inout"; break;
case EvqInput: return "input"; break;
case EvqOutput: return "output"; break;
case EvqPosition: return "Position"; break;
case EvqPointSize: return "PointSize"; break;
case EvqClipVertex: return "ClipVertex"; break;
case EvqFace: return "Face"; break;
case EvqFragCoord: return "FragCoord"; break;
case EvqFragColor: return "FragColor"; break;
case EvqFragDepth: return "FragDepth"; break;
default: return "unknown qualifier";
}
}
#endif // _BASICTYPES_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _COMMON_INCLUDED_
#define _COMMON_INCLUDED_
#ifdef _WIN32
#include <basetsd.h>
#elif defined (solaris)
#include <sys/int_types.h>
#define UINT_PTR uintptr_t
#else
#include <stdint.h>
#define UINT_PTR uintptr_t
#endif
/* windows only pragma */
#ifdef _MSC_VER
#pragma warning(disable : 4786) // Don't warn about too long identifiers
#pragma warning(disable : 4514) // unused inline method
#pragma warning(disable : 4201) // nameless union
#endif
//
// Doing the push and pop below for warnings does not leave the warning state
// the way it was. This seems like a defect in the compiler. We would like
// to do this, but since it does not work correctly right now, it is turned
// off.
//
//??#pragma warning(push, 3)
#include <set>
#include <vector>
#include <map>
#include <list>
#include <string>
#include <stdio.h>
//??#pragma warning(pop)
typedef int TSourceLoc;
#include <assert.h>
#include "PoolAlloc.h"
//
// Put POOL_ALLOCATOR_NEW_DELETE in base classes to make them use this scheme.
//
#define POOL_ALLOCATOR_NEW_DELETE(A) \
void* operator new(size_t s) { return (A).allocate(s); } \
void* operator new(size_t, void *_Where) { return (_Where); } \
void operator delete(void*) { } \
void operator delete(void *, void *) { } \
void* operator new[](size_t s) { return (A).allocate(s); } \
void* operator new[](size_t, void *_Where) { return (_Where); } \
void operator delete[](void*) { } \
void operator delete[](void *, void *) { }
#define TBaseMap std::map
#define TBaseList std::list
#define TBaseSet std::set
//
// Pool version of string.
//
typedef pool_allocator<char> TStringAllocator;
typedef std::basic_string <char, std::char_traits<char>, TStringAllocator > TString;
inline TString* NewPoolTString(const char* s)
{
void* memory = GlobalPoolAllocator.allocate(sizeof(TString));
return new(memory) TString(s);
}
//
// Pool allocator versions of vectors, lists, and maps
//
template <class T> class TVector : public std::vector<T, pool_allocator<T> > {
public:
typedef typename std::vector<T, pool_allocator<T> >::size_type size_type;
TVector() : std::vector<T, pool_allocator<T> >() {}
TVector(const pool_allocator<T>& a) : std::vector<T, pool_allocator<T> >(a) {}
TVector(size_type i): std::vector<T, pool_allocator<T> >(i) {}
};
template <class T> class TList : public TBaseList <T, pool_allocator<T> > {
public:
typedef typename TBaseList<T, pool_allocator<T> >::size_type size_type;
TList() : TBaseList<T, pool_allocator<T> >() {}
TList(const pool_allocator<T>& a) : TBaseList<T, pool_allocator<T> >(a) {}
TList(size_type i): TBaseList<T, pool_allocator<T> >(i) {}
};
// This is called TStlSet, because TSet is taken by an existing compiler class.
template <class T, class CMP> class TStlSet : public std::set<T, CMP, pool_allocator<T> > {
// No pool allocator versions of constructors in std::set.
};
template <class K, class D, class CMP = std::less<K> >
class TMap : public TBaseMap<K, D, CMP, pool_allocator<std::pair<K, D> > > {
public:
typedef pool_allocator<std::pair <K, D> > tAllocator;
TMap() : TBaseMap<K, D, CMP, tAllocator >() {}
// use correct two-stage name lookup supported in gcc 3.4 and above
TMap(const tAllocator& a) : TBaseMap<K, D, CMP, tAllocator>(TBaseMap<K, D, CMP, tAllocator >::key_compare(), a) {}
};
//
// Persistent string memory. Should only be used for strings that survive
// across compiles/links.
//
typedef std::basic_string<char> TPersistString;
//
// templatized min and max functions.
//
template <class T> T Min(const T a, const T b) { return a < b ? a : b; }
template <class T> T Max(const T a, const T b) { return a > b ? a : b; }
//
// Create a TString object from an integer.
//
inline const TString String(const int i, const int base = 10)
{
char text[16]; // 32 bit ints are at most 10 digits in base 10
#ifdef _WIN32
itoa(i, text, base);
#else
// we assume base 10 for all cases
sprintf(text, "%d", i);
#endif
return text;
}
const unsigned int SourceLocLineMask = 0xffff;
const unsigned int SourceLocStringShift = 16;
__inline TPersistString FormatSourceLoc(const TSourceLoc loc)
{
char locText[64];
int string = loc >> SourceLocStringShift;
int line = loc & SourceLocLineMask;
if (line)
sprintf(locText, "%d:%d", string, line);
else
sprintf(locText, "%d:? ", string);
return TPersistString(locText);
}
typedef TMap<TString, TString> TPragmaTable;
typedef TMap<TString, TString>::tAllocator TPragmaTableAllocator;
#endif // _COMMON_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _CONSTANT_UNION_INCLUDED_
#define _CONSTANT_UNION_INCLUDED_
class constUnion {
public:
POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)
void setIConst(int i) {iConst = i; type = EbtInt; }
void setFConst(float f) {fConst = f; type = EbtFloat; }
void setBConst(bool b) {bConst = b; type = EbtBool; }
int getIConst() { return iConst; }
float getFConst() { return fConst; }
bool getBConst() { return bConst; }
int getIConst() const { return iConst; }
float getFConst() const { return fConst; }
bool getBConst() const { return bConst; }
bool operator==(const int i) const
{
if (i == iConst)
return true;
return false;
}
bool operator==(const float f) const
{
if (f == fConst)
return true;
return false;
}
bool operator==(const bool b) const
{
if (b == bConst)
return true;
return false;
}
bool operator==(const constUnion& constant) const
{
if (constant.type != type)
return false;
switch (type) {
case EbtInt:
if (constant.iConst == iConst)
return true;
break;
case EbtFloat:
if (constant.fConst == fConst)
return true;
break;
case EbtBool:
if (constant.bConst == bConst)
return true;
break;
}
return false;
}
bool operator!=(const int i) const
{
return !operator==(i);
}
bool operator!=(const float f) const
{
return !operator==(f);
}
bool operator!=(const bool b) const
{
return !operator==(b);
}
bool operator!=(const constUnion& constant) const
{
return !operator==(constant);
}
bool operator>(const constUnion& constant) const
{
assert(type == constant.type);
switch (type) {
case EbtInt:
if (iConst > constant.iConst)
return true;
return false;
case EbtFloat:
if (fConst > constant.fConst)
return true;
return false;
default:
assert(false && "Default missing");
return false;
}
return false;
}
bool operator<(const constUnion& constant) const
{
assert(type == constant.type);
switch (type) {
case EbtInt:
if (iConst < constant.iConst)
return true;
return false;
case EbtFloat:
if (fConst < constant.fConst)
return true;
return false;
default:
assert(false && "Default missing");
return false;
}
return false;
}
constUnion operator+(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst + constant.iConst); break;
case EbtFloat: returnValue.setFConst(fConst + constant.fConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator-(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst - constant.iConst); break;
case EbtFloat: returnValue.setFConst(fConst - constant.fConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator*(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst * constant.iConst); break;
case EbtFloat: returnValue.setFConst(fConst * constant.fConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator%(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst % constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator>>(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst >> constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator<<(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst << constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator&(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst & constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator|(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst | constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator^(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtInt: returnValue.setIConst(iConst ^ constant.iConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator&&(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtBool: returnValue.setBConst(bConst && constant.bConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
constUnion operator||(const constUnion& constant) const
{
constUnion returnValue;
assert(type == constant.type);
switch (type) {
case EbtBool: returnValue.setBConst(bConst || constant.bConst); break;
default: assert(false && "Default missing");
}
return returnValue;
}
TBasicType getType() { return type; }
private:
union {
int iConst; // used for ivec, scalar ints
bool bConst; // used for bvec, scalar bools
float fConst; // used for vec, mat, scalar floats
} ;
TBasicType type;
};
#endif // _CONSTANT_UNION_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _INFOSINK_INCLUDED_
#define _INFOSINK_INCLUDED_
#include "../Include/Common.h"
#include <math.h>
//
// TPrefixType is used to centralize how info log messages start.
// See below.
//
enum TPrefixType {
EPrefixNone,
EPrefixWarning,
EPrefixError,
EPrefixInternalError,
EPrefixUnimplemented,
EPrefixNote
};
enum TOutputStream {
ENull = 0,
EDebugger = 0x01,
EStdOut = 0x02,
EString = 0x04,
};
//
// Encapsulate info logs for all objects that have them.
//
// The methods are a general set of tools for getting a variety of
// messages and types inserted into the log.
//
class TInfoSinkBase {
public:
TInfoSinkBase() : outputStream(4) {}
void erase() { sink.erase(); }
TInfoSinkBase& operator<<(const TPersistString& t) { append(t); return *this; }
TInfoSinkBase& operator<<(char c) { append(1, c); return *this; }
TInfoSinkBase& operator<<(const char* s) { append(s); return *this; }
TInfoSinkBase& operator<<(int n) { append(String(n)); return *this; }
TInfoSinkBase& operator<<(const unsigned int n) { append(String(n)); return *this; }
TInfoSinkBase& operator<<(float n) { char buf[40];
sprintf(buf, (fabs(n) > 1e-8 && fabs(n) < 1e8) || n == 0.0f ?
"%f" : "%g", n);
append(buf);
return *this; }
TInfoSinkBase& operator+(const TPersistString& t) { append(t); return *this; }
TInfoSinkBase& operator+(const TString& t) { append(t); return *this; }
TInfoSinkBase& operator<<(const TString& t) { append(t); return *this; }
TInfoSinkBase& operator+(const char* s) { append(s); return *this; }
const char* c_str() const { return sink.c_str(); }
void prefix(TPrefixType message) {
switch(message) {
case EPrefixNone: break;
case EPrefixWarning: append("WARNING: "); break;
case EPrefixError: append("ERROR: "); break;
case EPrefixInternalError: append("INTERNAL ERROR: "); break;
case EPrefixUnimplemented: append("UNIMPLEMENTED: "); break;
case EPrefixNote: append("NOTE: "); break;
default: append("UNKOWN ERROR: "); break;
}
}
void location(TSourceLoc loc) {
append(FormatSourceLoc(loc).c_str());
append(": ");
}
void message(TPrefixType message, const char* s) {
prefix(message);
append(s);
append("\n");
}
void message(TPrefixType message, const char* s, TSourceLoc loc) {
prefix(message);
location(loc);
append(s);
append("\n");
}
void setOutputStream(int output = 4)
{
outputStream = output;
}
protected:
void append(const char *s);
void append(int count, char c);
void append(const TPersistString& t);
void append(const TString& t);
void checkMem(size_t growth) { if (sink.capacity() < sink.size() + growth + 2)
sink.reserve(sink.capacity() + sink.capacity() / 2); }
void appendToStream(const char* s);
TPersistString sink;
int outputStream;
};
class TInfoSink {
public:
TInfoSinkBase info;
TInfoSinkBase debug;
};
#endif // _INFOSINK_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef __INITIALIZE_GLOBALS_INCLUDED_
#define __INITIALIZE_GLOBALS_INCLUDED_
void InitializeGlobalPools();
void FreeGlobalPools();
bool InitializePoolIndex();
void FreePoolIndex();
#endif // __INITIALIZE_GLOBALS_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#define __INITIALIZE_PARSE_CONTEXT_INCLUDED_
#include "osinclude.h"
bool InitializeParseContextIndex();
bool InitializeGlobalParseContext();
bool FreeParseContext();
bool FreeParseContextIndex();
#endif // __INITIALIZE_PARSE_CONTEXT_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _POOLALLOC_INCLUDED_
#define _POOLALLOC_INCLUDED_
#ifdef _DEBUG
# define GUARD_BLOCKS // define to enable guard block sanity checking
#endif
//
// This header defines an allocator that can be used to efficiently
// allocate a large number of small requests for heap memory, with the
// intention that they are not individually deallocated, but rather
// collectively deallocated at one time.
//
// This simultaneously
//
// * Makes each individual allocation much more efficient; the
// typical allocation is trivial.
// * Completely avoids the cost of doing individual deallocation.
// * Saves the trouble of tracking down and plugging a large class of leaks.
//
// Individual classes can use this allocator by supplying their own
// new and delete methods.
//
// STL containers can use this allocator by using the pool_allocator
// class as the allocator (second) template argument.
//
#include <stddef.h>
#include <vector>
// If we are using guard blocks, we must track each indivual
// allocation. If we aren't using guard blocks, these
// never get instantiated, so won't have any impact.
//
class TAllocation {
public:
TAllocation(size_t size, unsigned char* mem, TAllocation* prev = 0) :
size(size), mem(mem), prevAlloc(prev) {
// Allocations are bracketed:
// [allocationHeader][initialGuardBlock][userData][finalGuardBlock]
// This would be cleaner with if (guardBlockSize)..., but that
// makes the compiler print warnings about 0 length memsets,
// even with the if() protecting them.
# ifdef GUARD_BLOCKS
memset(preGuard(), guardBlockBeginVal, guardBlockSize);
memset(data(), userDataFill, size);
memset(postGuard(), guardBlockEndVal, guardBlockSize);
# endif
}
void check() const {
checkGuardBlock(preGuard(), guardBlockBeginVal, "before");
checkGuardBlock(postGuard(), guardBlockEndVal, "after");
}
void checkAllocList() const;
// Return total size needed to accomodate user buffer of 'size',
// plus our tracking data.
inline static size_t allocationSize(size_t size) {
return size + 2 * guardBlockSize + headerSize();
}
// Offset from surrounding buffer to get to user data buffer.
inline static unsigned char* offsetAllocation(unsigned char* m) {
return m + guardBlockSize + headerSize();
}
private:
void checkGuardBlock(unsigned char* blockMem, unsigned char val, char* locText) const;
// Find offsets to pre and post guard blocks, and user data buffer
unsigned char* preGuard() const { return mem + headerSize(); }
unsigned char* data() const { return preGuard() + guardBlockSize; }
unsigned char* postGuard() const { return data() + size; }
size_t size; // size of the user data area
unsigned char* mem; // beginning of our allocation (pts to header)
TAllocation* prevAlloc; // prior allocation in the chain
// Support MSVC++ 6.0
const static unsigned char guardBlockBeginVal;
const static unsigned char guardBlockEndVal;
const static unsigned char userDataFill;
const static size_t guardBlockSize;
# ifdef GUARD_BLOCKS
inline static size_t headerSize() { return sizeof(TAllocation); }
# else
inline static size_t headerSize() { return 0; }
# endif
};
//
// There are several stacks. One is to track the pushing and popping
// of the user, and not yet implemented. The others are simply a
// repositories of free pages or used pages.
//
// Page stacks are linked together with a simple header at the beginning
// of each allocation obtained from the underlying OS. Multi-page allocations
// are returned to the OS. Individual page allocations are kept for future
// re-use.
//
// The "page size" used is not, nor must it match, the underlying OS
// page size. But, having it be about that size or equal to a set of
// pages is likely most optimal.
//
class TPoolAllocator {
public:
TPoolAllocator(bool global = false, int growthIncrement = 8*1024, int allocationAlignment = 16);
//
// Don't call the destructor just to free up the memory, call pop()
//
~TPoolAllocator();
//
// Call push() to establish a new place to pop memory too. Does not
// have to be called to get things started.
//
void push();
//
// Call pop() to free all memory allocated since the last call to push(),
// or if no last call to push, frees all memory since first allocation.
//
void pop();
//
// Call popAll() to free all memory allocated.
//
void popAll();
//
// Call allocate() to actually acquire memory. Returns 0 if no memory
// available, otherwise a properly aligned pointer to 'numBytes' of memory.
//
void* allocate(size_t numBytes);
//
// There is no deallocate. The point of this class is that
// deallocation can be skipped by the user of it, as the model
// of use is to simultaneously deallocate everything at once
// by calling pop(), and to not have to solve memory leak problems.
//
protected:
friend struct tHeader;
struct tHeader {
tHeader(tHeader* nextPage, size_t pageCount) :
#ifdef GUARD_BLOCKS
lastAllocation(0),
#endif
nextPage(nextPage), pageCount(pageCount) { }
~tHeader() {
#ifdef GUARD_BLOCKS
if (lastAllocation)
lastAllocation->checkAllocList();
#endif
}
tHeader* nextPage;
size_t pageCount;
#ifdef GUARD_BLOCKS
TAllocation* lastAllocation;
#endif
};
struct tAllocState {
size_t offset;
tHeader* page;
};
typedef std::vector<tAllocState> tAllocStack;
// Track allocations if and only if we're using guard blocks
void* initializeAllocation(tHeader* block, unsigned char* memory, size_t numBytes) {
# ifdef GUARD_BLOCKS
new(memory) TAllocation(numBytes, memory, block->lastAllocation);
block->lastAllocation = reinterpret_cast<TAllocation*>(memory);
# endif
// This is optimized entirely away if GUARD_BLOCKS is not defined.
return TAllocation::offsetAllocation(memory);
}
bool global; // should be true if this object is globally scoped
size_t pageSize; // granularity of allocation from the OS
size_t alignment; // all returned allocations will be aligned at
// this granularity, which will be a power of 2
size_t alignmentMask;
size_t headerSkip; // amount of memory to skip to make room for the
// header (basically, size of header, rounded
// up to make it aligned
size_t currentPageOffset; // next offset in top of inUseList to allocate from
tHeader* freeList; // list of popped memory
tHeader* inUseList; // list of all memory currently being used
tAllocStack stack; // stack of where to allocate from, to partition pool
int numCalls; // just an interesting statistic
size_t totalBytes; // just an interesting statistic
private:
TPoolAllocator& operator=(const TPoolAllocator&); // dont allow assignment operator
TPoolAllocator(const TPoolAllocator&); // dont allow default copy constructor
};
//
// There could potentially be many pools with pops happening at
// different times. But a simple use is to have a global pop
// with everyone using the same global allocator.
//
typedef TPoolAllocator* PoolAllocatorPointer;
extern TPoolAllocator& GetGlobalPoolAllocator();
#define GlobalPoolAllocator GetGlobalPoolAllocator()
struct TThreadGlobalPools
{
TPoolAllocator* globalPoolAllocator;
};
void SetGlobalPoolAllocatorPtr(TPoolAllocator* poolAllocator);
//
// This STL compatible allocator is intended to be used as the allocator
// parameter to templatized STL containers, like vector and map.
//
// It will use the pools for allocation, and not
// do any deallocation, but will still do destruction.
//
template<class T>
class pool_allocator {
public:
typedef size_t size_type;
typedef ptrdiff_t difference_type;
typedef T *pointer;
typedef const T *const_pointer;
typedef T& reference;
typedef const T& const_reference;
typedef T value_type;
template<class Other>
struct rebind {
typedef pool_allocator<Other> other;
};
pointer address(reference x) const { return &x; }
const_pointer address(const_reference x) const { return &x; }
#ifdef USING_SGI_STL
pool_allocator() { }
#else
pool_allocator() : allocator(GlobalPoolAllocator) { }
pool_allocator(TPoolAllocator& a) : allocator(a) { }
pool_allocator(const pool_allocator<T>& p) : allocator(p.allocator) { }
#endif
#if defined(_MSC_VER) && _MSC_VER >= 1300
template<class Other>
#ifdef USING_SGI_STL
pool_allocator(const pool_allocator<Other>& p) /*: allocator(p.getAllocator())*/ { }
#else
pool_allocator(const pool_allocator<Other>& p) : allocator(p.getAllocator()) { }
#endif
#endif
#ifndef _WIN32
template<class Other>
pool_allocator(const pool_allocator<Other>& p) : allocator(p.getAllocator()) { }
#endif
#ifdef USING_SGI_STL
static pointer allocate(size_type n) {
return reinterpret_cast<pointer>(getAllocator().allocate(n)); }
pointer allocate(size_type n, const void*) {
return reinterpret_cast<pointer>(getAllocator().allocate(n)); }
static void deallocate(void*, size_type) { }
static void deallocate(pointer, size_type) { }
#else
pointer allocate(size_type n) {
return reinterpret_cast<pointer>(getAllocator().allocate(n * sizeof(T))); }
pointer allocate(size_type n, const void*) {
return reinterpret_cast<pointer>(getAllocator().allocate(n * sizeof(T))); }
void deallocate(void*, size_type) { }
void deallocate(pointer, size_type) { }
#endif
pointer _Charalloc(size_t n) {
return reinterpret_cast<pointer>(getAllocator().allocate(n)); }
void construct(pointer p, const T& val) { new ((void *)p) T(val); }
void destroy(pointer p) { p->T::~T(); }
bool operator==(const pool_allocator& rhs) const { return &getAllocator() == &rhs.getAllocator(); }
bool operator!=(const pool_allocator& rhs) const { return &getAllocator() != &rhs.getAllocator(); }
size_type max_size() const { return static_cast<size_type>(-1) / sizeof(T); }
size_type max_size(int size) const { return static_cast<size_type>(-1) / size; }
#ifdef USING_SGI_STL
//void setAllocator(TPoolAllocator* a) { allocator = a; }
static TPoolAllocator& getAllocator() { return GlobalPoolAllocator; }
#else
void setAllocator(TPoolAllocator* a) { allocator = *a; }
TPoolAllocator& getAllocator() const { return allocator; }
protected:
TPoolAllocator& allocator;
#endif
};
#endif // _POOLALLOC_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _RESOURCE_LIMITS_INCLUDED_
#define _RESOURCE_LIMITS_INCLUDED_
struct TBuiltInResource {
int maxLights;
int maxClipPlanes;
int maxTextureUnits;
int maxTextureCoords;
int maxVertexAttribs;
int maxVertexUniformComponents;
int maxVaryingFloats;
int maxVertexTextureImageUnits;
int maxCombinedTextureImageUnits;
int maxTextureImageUnits;
int maxFragmentUniformComponents;
int maxDrawBuffers;
};
#endif // _RESOURCE_LIMITS_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _SHHANDLE_INCLUDED_
#define _SHHANDLE_INCLUDED_
//
// Machine independent part of the compiler private objects
// sent as ShHandle to the driver.
//
// This should not be included by driver code.
//
#define SH_EXPORTING
#include "../Public/ShaderLang.h"
#include "InfoSink.h"
class TCompiler;
class TLinker;
class TUniformMap;
//
// The base class used to back handles returned to the driver.
//
class TShHandleBase {
public:
TShHandleBase() { }
virtual ~TShHandleBase() { }
virtual TCompiler* getAsCompiler() { return 0; }
virtual TLinker* getAsLinker() { return 0; }
virtual TUniformMap* getAsUniformMap() { return 0; }
};
//
// The base class for the machine dependent linker to derive from
// for managing where uniforms live.
//
class TUniformMap : public TShHandleBase {
public:
TUniformMap() { }
virtual ~TUniformMap() { }
virtual TUniformMap* getAsUniformMap() { return this; }
virtual int getLocation(const char* name) = 0;
virtual TInfoSink& getInfoSink() { return infoSink; }
TInfoSink infoSink;
};
class TIntermNode;
//
// The base class for the machine dependent compiler to derive from
// for managing object code from the compile.
//
class TCompiler : public TShHandleBase {
public:
TCompiler(EShLanguage l, TInfoSink& sink) : infoSink(sink) , language(l), haveValidObjectCode(false) { }
virtual ~TCompiler() { }
EShLanguage getLanguage() { return language; }
virtual TInfoSink& getInfoSink() { return infoSink; }
virtual bool compile(TIntermNode* root) = 0;
virtual TCompiler* getAsCompiler() { return this; }
virtual bool linkable() { return haveValidObjectCode; }
TInfoSink& infoSink;
protected:
EShLanguage language;
bool haveValidObjectCode;
};
//
// Link operations are base on a list of compile results...
//
typedef TVector<TCompiler*> TCompilerList;
typedef TVector<TShHandleBase*> THandleList;
//
// The base class for the machine dependent linker to derive from
// to manage the resulting executable.
//
class TLinker : public TShHandleBase {
public:
TLinker(EShExecutable e, TInfoSink& iSink) :
infoSink(iSink),
executable(e),
haveReturnableObjectCode(false),
appAttributeBindings(0),
fixedAttributeBindings(0),
excludedAttributes(0),
excludedCount(0),
uniformBindings(0) { }
virtual TLinker* getAsLinker() { return this; }
virtual ~TLinker() { }
virtual bool link(TCompilerList&, TUniformMap*) = 0;
virtual bool link(THandleList&) { return false; }
virtual void setAppAttributeBindings(const ShBindingTable* t) { appAttributeBindings = t; }
virtual void setFixedAttributeBindings(const ShBindingTable* t) { fixedAttributeBindings = t; }
virtual void getAttributeBindings(ShBindingTable const **t) const = 0;
virtual void setExcludedAttributes(const int* attributes, int count) { excludedAttributes = attributes; excludedCount = count; }
virtual ShBindingTable* getUniformBindings() const { return uniformBindings; }
virtual const void* getObjectCode() const { return 0; } // a real compiler would be returning object code here
virtual TInfoSink& getInfoSink() { return infoSink; }
TInfoSink& infoSink;
protected:
EShExecutable executable;
bool haveReturnableObjectCode; // true when objectCode is acceptable to send to driver
const ShBindingTable* appAttributeBindings;
const ShBindingTable* fixedAttributeBindings;
const int* excludedAttributes;
int excludedCount;
ShBindingTable* uniformBindings; // created by the linker
};
//
// This is the interface between the machine independent code
// and the machine dependent code.
//
// The machine dependent code should derive from the classes
// above. Then Construct*() and Delete*() will create and
// destroy the machine dependent objects, which contain the
// above machine independent information.
//
TCompiler* ConstructCompiler(EShLanguage, int);
TShHandleBase* ConstructLinker(EShExecutable, int);
void DeleteLinker(TShHandleBase*);
TUniformMap* ConstructUniformMap();
void DeleteCompiler(TCompiler*);
void DeleteUniformMap(TUniformMap*);
#endif // _SHHANDLE_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
#ifndef _TYPES_INCLUDED
#define _TYPES_INCLUDED
#include "../Include/Common.h"
#include "../Include/BaseTypes.h"
//
// Need to have association of line numbers to types in a list for building structs.
//
class TType;
struct TTypeLine {
TType* type;
int line;
};
typedef TVector<TTypeLine> TTypeList;
inline TTypeList* NewPoolTTypeList()
{
void* memory = GlobalPoolAllocator.allocate(sizeof(TTypeList));
return new(memory) TTypeList;
}
//
// This is a workaround for a problem with the yacc stack, It can't have
// types that it thinks have non-trivial constructors. It should
// just be used while recognizing the grammar, not anything else. Pointers
// could be used, but also trying to avoid lots of memory management overhead.
//
// Not as bad as it looks, there is no actual assumption that the fields
// match up or are name the same or anything like that.
//
class TPublicType {
public:
TBasicType type;
TQualifier qualifier;
int size; // size of vector or matrix, not size of array
bool matrix;
bool array;
int arraySize;
TType* userDef;
int line;
void setBasic(TBasicType bt, TQualifier q, int ln = 0)
{
type = bt;
qualifier = q;
size = 1;
matrix = false;
array = false;
arraySize = 0;
userDef = 0;
line = ln;
}
void setAggregate(int s, bool m = false)
{
size = s;
matrix = m;
}
void setArray(bool a, int s = 0)
{
array = a;
arraySize = s;
}
};
typedef std::map<TTypeList*, TTypeList*> TStructureMap;
typedef std::map<TTypeList*, TTypeList*>::iterator TStructureMapIterator;
//
// Base class for things that have a type.
//
class TType {
public:
POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)
explicit TType(TBasicType t, TQualifier q = EvqTemporary, int s = 1, bool m = false, bool a = false) :
type(t), qualifier(q), size(s), matrix(m), array(a), arraySize(0),
structure(0), structureSize(0), maxArraySize(0), arrayInformationType(0), fieldName(0), mangled(0), typeName(0)
{ }
explicit TType(const TPublicType &p) :
type(p.type), qualifier(p.qualifier), size(p.size), matrix(p.matrix), array(p.array), arraySize(p.arraySize),
structure(0), structureSize(0), maxArraySize(0), arrayInformationType(0), fieldName(0), mangled(0), typeName(0)
{
if (p.userDef) {
structure = p.userDef->getStruct();
typeName = NewPoolTString(p.userDef->getTypeName().c_str());
}
}
explicit TType(TTypeList* userDef, const TString& n) :
type(EbtStruct), qualifier(EvqTemporary), size(1), matrix(false), array(false), arraySize(0),
structure(userDef), maxArraySize(0), arrayInformationType(0), fieldName(0), mangled(0) {
typeName = NewPoolTString(n.c_str());
}
explicit TType() {}
virtual ~TType() {}
TType(const TType& type) { *this = type; }
void copyType(const TType& copyOf, TStructureMap& remapper)
{
type = copyOf.type;
qualifier = copyOf.qualifier;
size = copyOf.size;
matrix = copyOf.matrix;
array = copyOf.array;
arraySize = copyOf.arraySize;
TStructureMapIterator iter;
if (copyOf.structure) {
if ((iter = remapper.find(structure)) == remapper.end()) {
// create the new structure here
structure = NewPoolTTypeList();
for (unsigned int i = 0; i < copyOf.structure->size(); ++i) {
TTypeLine typeLine;
typeLine.line = (*copyOf.structure)[i].line;
typeLine.type = (*copyOf.structure)[i].type->clone(remapper);
structure->push_back(typeLine);
}
} else {
structure = iter->second;
}
} else
structure = 0;
fieldName = 0;
if (copyOf.fieldName)
fieldName = NewPoolTString(copyOf.fieldName->c_str());
typeName = 0;
if (copyOf.typeName)
typeName = NewPoolTString(copyOf.typeName->c_str());
mangled = 0;
if (copyOf.mangled)
mangled = NewPoolTString(copyOf.mangled->c_str());
structureSize = copyOf.structureSize;
maxArraySize = copyOf.maxArraySize;
assert(copyOf.arrayInformationType == 0);
arrayInformationType = 0; // arrayInformationType should not be set for builtIn symbol table level
}
TType* clone(TStructureMap& remapper)
{
TType *newType = new TType();
newType->copyType(*this, remapper);
return newType;
}
virtual void setType(TBasicType t, int s, bool m, bool a, int aS = 0)
{ type = t; size = s; matrix = m; array = a; arraySize = aS; }
virtual void setType(TBasicType t, int s, bool m, TType* userDef = 0)
{ type = t;
size = s;
matrix = m;
if (userDef)
structure = userDef->getStruct();
// leave array information intact.
}
virtual void setTypeName(const TString& n) { typeName = NewPoolTString(n.c_str()); }
virtual void setFieldName(const TString& n) { fieldName = NewPoolTString(n.c_str()); }
virtual const TString& getTypeName() const
{
assert(typeName);
return *typeName;
}
virtual const TString& getFieldName() const
{
assert(fieldName);
return *fieldName;
}
virtual TBasicType getBasicType() const { return type; }
virtual TQualifier getQualifier() const { return qualifier; }
virtual void changeQualifier(TQualifier q) { qualifier = q; }
// One-dimensional size of single instance type
virtual int getNominalSize() const { return size; }
// Full-dimensional size of single instance of type
virtual int getInstanceSize() const
{
if (matrix)
return size * size;
else
return size;
}
virtual bool isMatrix() const { return matrix ? true : false; }
virtual bool isArray() const { return array ? true : false; }
int getArraySize() const { return arraySize; }
void setArraySize(int s) { array = true; arraySize = s; }
void setMaxArraySize (int s) { maxArraySize = s; }
int getMaxArraySize () const { return maxArraySize; }
void clearArrayness() { array = false; arraySize = 0; maxArraySize = 0; }
void setArrayInformationType(TType* t) { arrayInformationType = t; }
TType* getArrayInformationType() { return arrayInformationType; }
virtual bool isVector() const { return size > 1 && !matrix; }
static char* getBasicString(TBasicType t) {
switch (t) {
case EbtVoid: return "void"; break;
case EbtFloat: return "float"; break;
case EbtInt: return "int"; break;
case EbtBool: return "bool"; break;
case EbtSampler1D: return "sampler1D"; break;
case EbtSampler2D: return "sampler2D"; break;
case EbtSampler3D: return "sampler3D"; break;
case EbtSamplerCube: return "samplerCube"; break;
case EbtSampler1DShadow: return "sampler1DShadow"; break;
case EbtSampler2DShadow: return "sampler2DShadow"; break;
case EbtSamplerRect: return "samplerRect"; break; // ARB_texture_rectangle
case EbtSamplerRectShadow: return "samplerRectShadow"; break; // ARB_texture_rectangle
case EbtStruct: return "structure"; break;
default: return "unknown type";
}
}
const char* getBasicString() const { return TType::getBasicString(type); }
const char* getQualifierString() const { return ::getQualifierString(qualifier); }
TTypeList* getStruct() { return structure; }
int getObjectSize() const
{
int totalSize;
if (getBasicType() == EbtStruct)
totalSize = getStructSize();
else if (matrix)
totalSize = size * size;
else
totalSize = size;
if (isArray())
totalSize *= Max(getArraySize(), getMaxArraySize());
return totalSize;
}
TTypeList* getStruct() const { return structure; }
TString& getMangledName() {
if (!mangled) {
mangled = NewPoolTString("");
buildMangledName(*mangled);
*mangled += ';' ;
}
return *mangled;
}
bool sameElementType(const TType& right) const {
return type == right.type &&
size == right.size &&
matrix == right.matrix &&
structure == right.structure;
}
bool operator==(const TType& right) const {
return type == right.type &&
size == right.size &&
matrix == right.matrix &&
array == right.array && (!array || arraySize == right.arraySize) &&
structure == right.structure;
// don't check the qualifier, it's not ever what's being sought after
}
bool operator!=(const TType& right) const {
return !operator==(right);
}
TString getCompleteString() const;
protected:
void buildMangledName(TString&);
int getStructSize() const;
TBasicType type : 6;
TQualifier qualifier : 7;
int size : 8; // size of vector or matrix, not size of array
unsigned int matrix : 1;
unsigned int array : 1;
int arraySize;
TTypeList* structure; // 0 unless this is a struct
mutable int structureSize;
int maxArraySize;
TType* arrayInformationType;
TString *fieldName; // for structure field names
TString *mangled;
TString *typeName; // for structure field type name
};
#endif // _TYPES_INCLUDED_

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//
//Copyright (C) 2002-2005 3Dlabs Inc. Ltd.
//All rights reserved.
//
//Redistribution and use in source and binary forms, with or without
//modification, are permitted provided that the following conditions
//are met:
//
// Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following
// disclaimer in the documentation and/or other materials provided
// with the distribution.
//
// Neither the name of 3Dlabs Inc. Ltd. nor the names of its
// contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
//THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
//"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
//LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
//FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
//COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
//INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
//BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
//LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
//CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
//LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
//ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
//POSSIBILITY OF SUCH DAMAGE.
//
//
// Definition of the in-memory high-level intermediate representation
// of shaders. This is a tree that parser creates.
//
// Nodes in the tree are defined as a hierarchy of classes derived from
// TIntermNode. Each is a node in a tree. There is no preset branching factor;
// each node can have it's own type of list of children.
//
#ifndef __INTERMEDIATE_H
#define __INTERMEDIATE_H
#include "../Include/Common.h"
#include "../Include/Types.h"
#include "../Include/ConstantUnion.h"
//
// Operators used by the high-level (parse tree) representation.
//
enum TOperator {
EOpNull, // if in a node, should only mean a node is still being built
EOpSequence, // denotes a list of statements, or parameters, etc.
EOpFunctionCall,
EOpFunction, // For function definition
EOpParameters, // an aggregate listing the parameters to a function
//
// Unary operators
//
EOpNegative,
EOpLogicalNot,
EOpVectorLogicalNot,
EOpBitwiseNot,
EOpPostIncrement,
EOpPostDecrement,
EOpPreIncrement,
EOpPreDecrement,
EOpConvIntToBool,
EOpConvFloatToBool,
EOpConvBoolToFloat,
EOpConvIntToFloat,
EOpConvFloatToInt,
EOpConvBoolToInt,
//
// binary operations
//
EOpAdd,
EOpSub,
EOpMul,
EOpDiv,
EOpMod,
EOpRightShift,
EOpLeftShift,
EOpAnd,
EOpInclusiveOr,
EOpExclusiveOr,
EOpEqual,
EOpNotEqual,
EOpVectorEqual,
EOpVectorNotEqual,
EOpLessThan,
EOpGreaterThan,
EOpLessThanEqual,
EOpGreaterThanEqual,
EOpComma,
EOpVectorTimesScalar,
EOpVectorTimesMatrix,
EOpMatrixTimesVector,
EOpMatrixTimesScalar,
EOpLogicalOr,
EOpLogicalXor,
EOpLogicalAnd,
EOpIndexDirect,
EOpIndexIndirect,
EOpIndexDirectStruct,
EOpVectorSwizzle,
//
// Built-in functions potentially mapped to operators
//
EOpRadians,
EOpDegrees,
EOpSin,
EOpCos,
EOpTan,
EOpAsin,
EOpAcos,
EOpAtan,
EOpPow,
EOpExp,
EOpLog,
EOpExp2,
EOpLog2,
EOpSqrt,
EOpInverseSqrt,
EOpAbs,
EOpSign,
EOpFloor,
EOpCeil,
EOpFract,
EOpMin,
EOpMax,
EOpClamp,
EOpMix,
EOpStep,
EOpSmoothStep,
EOpLength,
EOpDistance,
EOpDot,
EOpCross,
EOpNormalize,
EOpFaceForward,
EOpReflect,
EOpRefract,
EOpDPdx, // Fragment only
EOpDPdy, // Fragment only
EOpFwidth, // Fragment only
EOpMatrixTimesMatrix,
EOpAny,
EOpAll,
EOpItof, // pack/unpack only
EOpFtoi, // pack/unpack only
EOpSkipPixels, // pack/unpack only
EOpReadInput, // unpack only
EOpWritePixel, // unpack only
EOpBitmapLsb, // unpack only
EOpBitmapMsb, // unpack only
EOpWriteOutput, // pack only
EOpReadPixel, // pack only
//
// Branch
//
EOpKill, // Fragment only
EOpReturn,
EOpBreak,
EOpContinue,
//
// Constructors
//
EOpConstructInt,
EOpConstructBool,
EOpConstructFloat,
EOpConstructVec2,
EOpConstructVec3,
EOpConstructVec4,
EOpConstructBVec2,
EOpConstructBVec3,
EOpConstructBVec4,
EOpConstructIVec2,
EOpConstructIVec3,
EOpConstructIVec4,
EOpConstructMat2,
EOpConstructMat3,
EOpConstructMat4,
EOpConstructStruct,
//
// moves
//
EOpAssign,
EOpAddAssign,
EOpSubAssign,
EOpMulAssign,
EOpVectorTimesMatrixAssign,
EOpVectorTimesScalarAssign,
EOpMatrixTimesScalarAssign,
EOpMatrixTimesMatrixAssign,
EOpDivAssign,
EOpModAssign,
EOpAndAssign,
EOpInclusiveOrAssign,
EOpExclusiveOrAssign,
EOpLeftShiftAssign,
EOpRightShiftAssign,
//
// Array operators
//
EOpArrayLength,
};
class TIntermTraverser;
class TIntermAggregate;
class TIntermBinary;
class TIntermConstantUnion;
class TIntermSelection;
class TIntermTyped;
class TIntermSymbol;
class TInfoSink;
//
// Base class for the tree nodes
//
class TIntermNode {
public:
POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)
TIntermNode() : line(0) {}
virtual TSourceLoc getLine() const { return line; }
virtual void setLine(TSourceLoc l) { line = l; }
virtual void traverse(TIntermTraverser*) = 0;
virtual TIntermTyped* getAsTyped() { return 0; }
virtual TIntermConstantUnion* getAsConstantUnion() { return 0; }
virtual TIntermAggregate* getAsAggregate() { return 0; }
virtual TIntermBinary* getAsBinaryNode() { return 0; }
virtual TIntermSelection* getAsSelectionNode() { return 0; }
virtual TIntermSymbol* getAsSymbolNode() { return 0; }
virtual ~TIntermNode() { }
protected:
TSourceLoc line;
};
//
// This is just to help yacc.
//
struct TIntermNodePair {
TIntermNode* node1;
TIntermNode* node2;
};
class TIntermSymbol;
class TIntermBinary;
//
// Intermediate class for nodes that have a type.
//
class TIntermTyped : public TIntermNode {
public:
TIntermTyped(const TType& t) : type(t) { }
virtual TIntermTyped* getAsTyped() { return this; }
virtual void setType(const TType& t) { type = t; }
virtual TType getType() const { return type; }
virtual TType* getTypePointer() { return &type; }
virtual TBasicType getBasicType() const { return type.getBasicType(); }
virtual TQualifier getQualifier() const { return type.getQualifier(); }
virtual int getNominalSize() const { return type.getNominalSize(); }
virtual int getSize() const { return type.getInstanceSize(); }
virtual bool isMatrix() const { return type.isMatrix(); }
virtual bool isArray() const { return type.isArray(); }
virtual bool isVector() const { return type.isVector(); }
const char* getBasicString() const { return type.getBasicString(); }
const char* getQualifierString() const { return type.getQualifierString(); }
TString getCompleteString() const { return type.getCompleteString(); }
protected:
TType type;
};
//
// Handle for, do-while, and while loops.
//
class TIntermLoop : public TIntermNode {
public:
TIntermLoop(TIntermNode* aBody, TIntermTyped* aTest, TIntermTyped* aTerminal, bool testFirst) :
body(aBody),
test(aTest),
terminal(aTerminal),
first(testFirst) { }
virtual void traverse(TIntermTraverser*);
TIntermNode* getBody() { return body; }
TIntermTyped* getTest() { return test; }
TIntermTyped* getTerminal() { return terminal; }
bool testFirst() { return first; }
protected:
TIntermNode* body; // code to loop over
TIntermTyped* test; // exit condition associated with loop, could be 0 for 'for' loops
TIntermTyped* terminal; // exists for for-loops
bool first; // true for while and for, not for do-while
};
//
// Handle break, continue, return, and kill.
//
class TIntermBranch : public TIntermNode {
public:
TIntermBranch(TOperator op, TIntermTyped* e) :
flowOp(op),
expression(e) { }
virtual void traverse(TIntermTraverser*);
TOperator getFlowOp() { return flowOp; }
TIntermTyped* getExpression() { return expression; }
protected:
TOperator flowOp;
TIntermTyped* expression; // non-zero except for "return exp;" statements
};
//
// Nodes that correspond to symbols or constants in the source code.
//
class TIntermSymbol : public TIntermTyped {
public:
// if symbol is initialized as symbol(sym), the memory comes from the poolallocator of sym. If sym comes from
// per process globalpoolallocator, then it causes increased memory usage per compile
// it is essential to use "symbol = sym" to assign to symbol
TIntermSymbol(int i, const TString& sym, const TType& t) :
TIntermTyped(t), id(i) { symbol = sym;}
virtual int getId() const { return id; }
virtual const TString& getSymbol() const { return symbol; }
virtual void traverse(TIntermTraverser*);
virtual TIntermSymbol* getAsSymbolNode() { return this; }
protected:
int id;
TString symbol;
};
class TIntermConstantUnion : public TIntermTyped {
public:
TIntermConstantUnion(constUnion *unionPointer, const TType& t) : TIntermTyped(t), unionArrayPointer(unionPointer) { }
constUnion* getUnionArrayPointer() const { return unionArrayPointer; }
void setUnionArrayPointer(constUnion *c) { unionArrayPointer = c; }
virtual TIntermConstantUnion* getAsConstantUnion() { return this; }
virtual void traverse(TIntermTraverser* );
virtual TIntermTyped* fold(TOperator, TIntermTyped*, TInfoSink&);
protected:
constUnion *unionArrayPointer;
};
//
// Intermediate class for node types that hold operators.
//
class TIntermOperator : public TIntermTyped {
public:
TOperator getOp() { return op; }
bool modifiesState() const;
bool isConstructor() const;
virtual bool promote(TInfoSink&) { return true; }
protected:
TIntermOperator(TOperator o) : TIntermTyped(TType(EbtFloat)), op(o) {}
TIntermOperator(TOperator o, TType& t) : TIntermTyped(t), op(o) {}
TOperator op;
};
//
// Nodes for all the basic binary math operators.
//
class TIntermBinary : public TIntermOperator {
public:
TIntermBinary(TOperator o) : TIntermOperator(o) {}
virtual void traverse(TIntermTraverser*);
virtual void setLeft(TIntermTyped* n) { left = n; }
virtual void setRight(TIntermTyped* n) { right = n; }
virtual TIntermTyped* getLeft() const { return left; }
virtual TIntermTyped* getRight() const { return right; }
virtual TIntermBinary* getAsBinaryNode() { return this; }
virtual bool promote(TInfoSink&);
protected:
TIntermTyped* left;
TIntermTyped* right;
};
//
// Nodes for unary math operators.
//
class TIntermUnary : public TIntermOperator {
public:
TIntermUnary(TOperator o, TType& t) : TIntermOperator(o, t), operand(0) {}
TIntermUnary(TOperator o) : TIntermOperator(o), operand(0) {}
virtual void traverse(TIntermTraverser*);
virtual void setOperand(TIntermTyped* o) { operand = o; }
virtual TIntermTyped* getOperand() { return operand; }
virtual bool promote(TInfoSink&);
protected:
TIntermTyped* operand;
};
typedef TVector<TIntermNode*> TIntermSequence;
typedef TVector<int> TQualifierList;
//
// Nodes that operate on an arbitrary sized set of children.
//
class TIntermAggregate : public TIntermOperator {
public:
TIntermAggregate() : TIntermOperator(EOpNull), userDefined(false), pragmaTable(0) { }
TIntermAggregate(TOperator o) : TIntermOperator(o), pragmaTable(0) { }
~TIntermAggregate() { delete pragmaTable; }
virtual TIntermAggregate* getAsAggregate() { return this; }
virtual void setOperator(TOperator o) { op = o; }
virtual TIntermSequence& getSequence() { return sequence; }
virtual void setName(const TString& n) { name = n; }
virtual const TString& getName() const { return name; }
virtual void traverse(TIntermTraverser*);
virtual void setUserDefined() { userDefined = true; }
virtual bool isUserDefined() { return userDefined; }
virtual TQualifierList& getQualifier() { return qualifier; }
void setOptimize(bool o) { optimize = o; }
void setDebug(bool d) { debug = d; }
bool getOptimize() { return optimize; }
bool getDebug() { return debug; }
void addToPragmaTable(const TPragmaTable& pTable);
const TPragmaTable& getPragmaTable() const { return *pragmaTable; }
protected:
TIntermAggregate(const TIntermAggregate&); // disallow copy constructor
TIntermAggregate& operator=(const TIntermAggregate&); // disallow assignment operator
TIntermSequence sequence;
TQualifierList qualifier;
TString name;
bool userDefined; // used for user defined function names
bool optimize;
bool debug;
TPragmaTable *pragmaTable;
};
//
// For if tests. Simplified since there is no switch statement.
//
class TIntermSelection : public TIntermTyped {
public:
TIntermSelection(TIntermTyped* cond, TIntermNode* trueB, TIntermNode* falseB) :
TIntermTyped(TType(EbtVoid)), condition(cond), trueBlock(trueB), falseBlock(falseB) {}
TIntermSelection(TIntermTyped* cond, TIntermNode* trueB, TIntermNode* falseB, const TType& type) :
TIntermTyped(type), condition(cond), trueBlock(trueB), falseBlock(falseB) {}
virtual void traverse(TIntermTraverser*);
virtual TIntermNode* getCondition() const { return condition; }
virtual TIntermNode* getTrueBlock() const { return trueBlock; }
virtual TIntermNode* getFalseBlock() const { return falseBlock; }
virtual TIntermSelection* getAsSelectionNode() { return this; }
protected:
TIntermTyped* condition;
TIntermNode* trueBlock;
TIntermNode* falseBlock;
};
//
// For traversing the tree. User should derive from this,
// put their traversal specific data in it, and then pass
// it to a Traverse method.
//
// When using this, just fill in the methods for nodes you want visited.
// Return false from a pre-visit to skip visiting that node's subtree.
//
class TIntermTraverser {
public:
POOL_ALLOCATOR_NEW_DELETE(GlobalPoolAllocator)
TIntermTraverser() :
visitSymbol(0),
visitConstantUnion(0),
visitBinary(0),
visitUnary(0),
visitSelection(0),
visitAggregate(0),
visitLoop(0),
visitBranch(0),
depth(0),
preVisit(true),
postVisit(false),
rightToLeft(false) {}
void (*visitSymbol)(TIntermSymbol*, TIntermTraverser*);
void (*visitConstantUnion)(TIntermConstantUnion*, TIntermTraverser*);
bool (*visitBinary)(bool preVisit, TIntermBinary*, TIntermTraverser*);
bool (*visitUnary)(bool preVisit, TIntermUnary*, TIntermTraverser*);
bool (*visitSelection)(bool preVisit, TIntermSelection*, TIntermTraverser*);
bool (*visitAggregate)(bool preVisit, TIntermAggregate*, TIntermTraverser*);
bool (*visitLoop)(bool preVisit, TIntermLoop*, TIntermTraverser*);
bool (*visitBranch)(bool preVisit, TIntermBranch*, TIntermTraverser*);
int depth;
bool preVisit;
bool postVisit;
bool rightToLeft;
};
#endif // __INTERMEDIATE_H